Sorry to start a new post on this topic but could not successfully add a photo to previous comments. I have the new rollers back on the press. They are still showing the same problem of streaking ink, but it seems somewhat less extreme this time. The front roller is taking the ink better than […]
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Problem with new rollers
I recently sent out an extra pair of SP-15 cores to be resurfaced. On receiving the new rollers, I transferred over the roller blocks/bearings and adjusted the height, but the rollers are not taking the ink well, it is streaking as if the rollers were skipping over the drum (the ink coverage on the drum […]
MoreImbalance of Ink of Drum and Rollers of SP-15
I noticed that the ink on the drum and rollers on my SP-15 bunch to one side, so I get uneven ink coverage when printing. I’m attaching a couple of photos. You’ll see that on the right side is where it’s light and almost translucent, and the ink tends to bunch on the left side […]
MoreSP-15 – snapped bolt
Hello from Newfoundland, Canada! Yesterday a bolt snapped off on my SP-15 in the assembly that lifts and lowers the top two steel rollers. This assembly is located in the area marked in red. I’m looking for a replacement bolt, and have contacted Fritz @ NA Graphics, just wondering if anyone has any information/insight into […]
MoreSP15 Restoration-Print/Trip mechanisms questions
Dear Printers,I was lucky to find an SP15 many years ago, albeit in nightmarish condition. I’m finally able to start restoring it again, and would like to give poor Paul a break from identifying the parts that I didn’t document properly in the dim past, and instead pester other pros with queries. Print/trip functionality […]
MoreSP20 Drum cam damaging cylinder?
I noticed that the drum cam (especially on the non-operator side) is looking worn. There’s corresponding wear on the cylinder. Does this indicate I need to adjust the screws on the support arms per page 11 in Paul’s book? If so, I’m a little unclear what screws I should be adjusting. thank you!
MoreUpdating wiring to add ground
I want to share my recent experience updating the wiring on an SP-20 motor to add ground. (Disclaimer: I am not an electrician although I consulted with an electrician.) My press arrived with the power cord cut off where it exited the press. So, I needed to add a plug anyway and decided it would […]
MoreSP-20 No Impression
I’m working on the rebuild of my (previously) dismantled SP-20 and I’m finally ready to test the impression. After calculating the correct amount of packing for a .019″ sheet (.024) on a cylinder with an undercut of 040 I proceeded to attempt a blind proof. There was nothing, not even when I added another .006 […]
MoreSP 15
Hello everyone. I bought a Vandercook SP 15, I have no experience in the subject and I would like to know the basic steps to start cleaning and remove rust from the rollers. The machine was not used in the last 10 years and may be missing some small pieces although the car moves and […]
MoreSP25 carriage gear adjustment
I have a problem with the large power carriage motor gear touching the edge of the carriage. Not sure I’m using the correct terminology but I have attached a photo. I had this problem once before and was able to correct it but now I can’t remember what I did. (I took off the cap […]
MoreSP20 Issue After Print
Hi all, I’m working with an SP20 and after I run through a print to the end of the bed and roll back to the feed board I hit some resistance about 6 inches before returning the cylinder the entire way back. Here is a video: IMG_0760 I’ve checked the screws and bolts I can […]
MoreSP-20 Taper pins in ink system lever bar
I’m in the process of putting back together a heavily desconstructed SP-20 #29569. I suspect (pictured top) these are taper pins that connect through the rod (picturesed 2nd) that raises and lowers the ink system. The pins are pretty stuck in place, so before I put a ton effort into trying to loose them, I […]
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